lesson 90: forEach does not work

[TurnFriendly]

Hi Shaun,
I struggle with iterarting to the posts array in the composable useTags.js. It throws an unhandled execption:
[Vue warn]: Unhandled error during execution of setup function
at <TagCloud key=1 posts= (5) [{…}, {…}, {…}, {…}, {…}] >
at <Index onVnodeUnmounted=fn ref=Ref< Proxy {…} > >
at <BaseTransition mode="out-in" appear=false persisted=false ... >
at
at
at
at
at
at <BaseTransition mode="out-in" appear=false persisted=false ... >
at
at
at
at

I am using Nuxt3. Code sample:
const useTags = (posts) => {

const tags = ref([])
const tagSet = new Set()

posts.forEach(item => {
item.tags.forEach(tag => tagSet.add(tag))
})

tags.value = [...tagSet]

return { tags }

}

export default useTags

Hope it is ok to get in touch with you by opening an issue.

[TurnFriendly]

the problem was, that I did not pass posts as props.post from the TagCloud component